*{
  margin: 0;
  padding: 0;;
}
.flex {
  display: flex;
}

.wrap {
  flex-wrap: wrap;
}

/* 水平垂直居中 */
.center {
  justify-content: center;
  align-items: center;
}

/* 水平居中 */
.levelcerter {
  justify-content: center;
}

/* 垂直居中 */
.verticalcerter {
  align-items: center;
}

/* 底部对齐*/
.bottomaligin {
  align-self: flex-end;
}

/* 两端对齐 */
.between {
  justify-content: space-between;
}

/* 自动分配*/
.around {
  justify-content: space-around;
}

.column {
  flex-direction: column;
}
.relative{
  position: relative;
}
.absolute{
  position: absolute;
}
#root,#root>div{
  height: 100%;
}
.ant-menu {
  height: 100%;
}
